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0.75ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6565394963

Certificate GIA 6565394963

Diamond specifications and retailer prices

From £900 GBP
As of November 4, 2026
Save £718 GBP (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,618 GBP at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 0.75ct natural round diamond

This 0.75ct natural round sits in the just-under-one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6565394963. Listed at 15 retailers as of November 4, 2026, with prices from £900 to £1,618, a £718 spread on the same certified stone. Helzberg Diamonds lists it at £1,618. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.75
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6565394963
Dimensions5.89 × 3.54 × 3.54 mm
L/W Ratio1.66
Culet sizeNone
Top View
5.89 mm3.54 mm0.75 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565394963
Side View
Table 59.0%Crown 32°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,618 GBP|Low: £900 GBP|High: £1,658 GBP|Avg: £1,139 GBP|-2.4%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 7£900 GBP
Retailer 4£903 GBP
Retailer 12£918 GBP
Retailer 15£934 GBP
Retailer 10£957 GBP
Retailer 6£984 GBP
Retailer 9£994 GBP
Retailer 11£1,010 GBP
Retailer 2£1,133 GBP
Retailer 14£1,219 GBP
Retailer 5£1,278 GBP
Retailer 8£1,291 GBP
Retailer 13£1,377 GBP
Retailer 3£1,461 GBP
Helzberg Diamonds£1,618 GBP

31 data points across 15 retailers

15 retailers£900 GBP to £1,618 GBP

A
Cheapest Retailer
-
£900 GBP
A
Retailer 2
-
£903 GBP
View
A
Retailer 3
-
£918 GBP
View
A
Retailer 4
-
£934 GBP
View
A
Retailer 5
-
£957 GBP
View
A
Retailer 6
-
£984 GBP
View
A
Retailer 7
-
£994 GBP
View
A
Retailer 8
-
£1,010 GBP
View
B+
Retailer 9
-
£1,133 GBP
View
B+
Retailer 10
-
£1,219 GBP
View
B+
Retailer 11
-
£1,278 GBP
View
B+
Retailer 12
-
£1,291 GBP
View
B+
Retailer 13
-
£1,377 GBP
View
B+
Retailer 14
-
£1,461 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRMLMLJPKPMJ · Nov 6
£1,618 GBP
$2,166 USD
View
14 more retailers have this diamond
Prices start from £900 GBPSave up to £718 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.75ct Round
£900 GBP